EP1045072B1 - Bodenschneidvorrichtung - Google Patents

Bodenschneidvorrichtung Download PDF

Info

Publication number
EP1045072B1
EP1045072B1 EP00460025A EP00460025A EP1045072B1 EP 1045072 B1 EP1045072 B1 EP 1045072B1 EP 00460025 A EP00460025 A EP 00460025A EP 00460025 A EP00460025 A EP 00460025A EP 1045072 B1 EP1045072 B1 EP 1045072B1
Authority
EP
European Patent Office
Prior art keywords
arm
belt
screw
pulley
chassis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00460025A
Other languages
English (en)
French (fr)
Other versions
EP1045072A1 (de
Inventor
Daniel Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diamant Boart NV SA
Original Assignee
Diamant Boart NV SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diamant Boart NV SA filed Critical Diamant Boart NV SA
Publication of EP1045072A1 publication Critical patent/EP1045072A1/de
Application granted granted Critical
Publication of EP1045072B1 publication Critical patent/EP1045072B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0906—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
    • E01C23/0926—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters
    • E01C23/0933—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters

Definitions

  • the present invention relates to a machine for sawing soils. It concerns more particularly the means which are used to allow the drive of the disc to cutting of said machine.
  • Soil sawing machines are already known as in US-A-5,765,926 and are generally consisting of a movable frame on which, on the one hand, rests a motor whose shaft is equipped with a driving pulley and, on the other hand, mounted another tree, one of which end is provided with a cutting disc that will saw the ground and the other end is provided with a driven pulley.
  • a belt is engaged between the driving and driven pulleys so that the motor can drive the cutting disc.
  • Trapezoidal belts can not be used.
  • belts of the flat belt type which is provided with several parallel bands trapezoidal section. These belts are usually employed for medium powers in the automotive or industry field. These belts, if they transmit many relatively high powers, do not require no less adjustments of the voltage.
  • a floor sawing machine is characterized in that it comprises a belt tensioner consisting of a roller at the end a pivoting arm adapted to exert pressure on the soft strand of said belt, said arm being fixed to said frame by means of a screw whose axis corresponds to the axis pivoting said arm, said screw having a pitch such as the reaction of the belt on the roller tends to clamp said arm on said frame.
  • the roller In order to increase the winding of the belt on the driving pulley, the roller is located near said driving pulley.
  • the axis of pivoting of said arm located near the second driven pulley and the screw has a step to the left.
  • the end of said arm which is fixed on said chassis comprises a spacer of polygonal section of perpendicular axis said arm, said spacer being clamped against said frame by means of said screw.
  • the assembly formed by said pulleys driving and driving, said belt and said tensioner is housed in a housing which is provided with a slot at the right of said spacer for the passage of a key engaged in said spacer.
  • the floor sawing machine shown in FIG. 1 includes a mobile chassis 10 consists essentially of a base 11 provided with four wheels 12 and a frame 13 articulated so as to pivot relative to the base 11 about an axis ⁇ . On the frame 13 rests a motor 20 which is provided at the end of its motor shaft 21 of a driving pulley 30. At the end of the frame 13 is provided a shaft 40, one of which first end is provided with a cutting disc 41 and the other end is provided with a driven pulley 50.
  • a belt 60 is passed between the pulley 30 and the driven pulley 50.
  • the belt 60 is of the flat belt type which is provided with several parallel strips 61 with trapezoidal sections, as this is shown in the inset of FIG. 2.
  • a frame 64 is also provided in the body of said belt.
  • the cutting disc 41 works by swallowing so as to to be able to drive the machine when it enters the ground. To get him into the ground, it operates a steering wheel 14, which has the effect of tilting the frame 13 by compared to the base 11.
  • the belt 60 has between the pulleys leading 30 and conducted 50 two strands, a stretched strand 62 and a soft strand 63.
  • a tensioner belt 70 consists of a roller 71 at the end of an arm 72 provided to exert a pressure on the soft strand 63 of the belt 60.
  • this is done at near the pulley 30 at the end of the motor shaft 21 of the motor 20 to improve the winding and adherence of the belt 60 on the driving pulley 30.
  • the pressure exerted by the roller 71 on the strand 63 allows the belt 60 to be stretched between the pulleys 30 and 50, in order to ensure a homogeneous distribution of the pressure and to improve the drive of the saw shaft 41.
  • the arm 72 is fixed on the frame 13 of the frame 10 in the following manner.
  • a tab 15 (visible in Figs 2 and 3) is integral with the frame 13 and is in a plane parallel to a plane containing the belt 60.
  • the lug 15 is pierced with a hole 15a of in order to be able to pass the rod of a screw 80.
  • the end of the arm 72 opposite to that which is provided with the roller 71 has a spacer 73 of polygonal section (for example hexagonal) whose axis is perpendicular to said arm 72. It will be noted that the arm 72 can pivot about this axis.
  • the free end of the spacer 73 has a flange 74.
  • the spacer 73 is pierced on its axis with a threaded hole designed to receive the screw 80. By screwing the screw 80 in the threaded hole of the spacer 73, the flange 74 of the spacer 73 is tightened against the leg 15, so that the tensioner 70 becomes fixed on the frame 13 of the frame 10.
  • the procedure is as follows. We slightly unscrews the screw 80, and with the aid of a key engaged on the struts of the spacer 73, the arm 72 is pivoted about the axis of the screw 80 and this, so as to tension the 60. When the desired tension is obtained, the screw 80 is tightened, which has the effect of effect of setting the tensioner 70 in this position.
  • the spacer 73 is for example hexagonal. As for the roller 71, it is for example mounted at the end of the arm 72 by means of ball bearings.
  • the screw 80 has a pitch such that the reaction of the belt 60 on the roller 71 and thus on the end of the arm 72, tends to clamp the arm 72, and therefore the flange 74 of the spacer 73, against the tab 15.
  • the reaction of the belt 60 on the arm 72 has the effect of pivoting the arm 72 about the axis of the screw 80 in the direction that is shown by an arrow A. To make this direction tend to tighten the screw 80, this must, in the configuration of FIG. 2, take a step to the left.
  • the assembly which is formed of the pulleys 30 and 50 of the belt 60 and the tensioner 70 is housed in a housing 90 which is normally closed by a cover so as to in normal operation, make the belt 60 inaccessible.
  • the housing cover 90 is removed and is therefore not visible.
  • This casing 90 has at the right of the spacer 73 of the tensioner 70 a slot 91 which is provided for the passage of a key engaged on the sides of the spacer 73.
  • the procedure is as follows. We opens the cover of the housing 90, so that we have access to the belt 60. We unscrew the screw 80 and the arm 72 is pivoted so as to completely relax the belt 60. Then, it is possible to release the pulleys 30 and 50 and remove it. We place then the new belt 60 on the pulleys 30 and 50, is rotated the tensioner 70 so as to retension the new belt 60, and when the desired tension is obtained, the screw 80 is tightened. Then the cover of the casing 90 is closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Soil Working Implements (AREA)
  • Road Repair (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Machine Tool Units (AREA)

Claims (5)

  1. Maschine zum Durchsägen von Böden, umfassend ein bewegliches Gestell (10), auf dem einerseits ein Motor (20) liegt, dessen Welle (21) mit einer antreibenden Rolle (30) versehen ist, und andererseits eine Welle (40) befestigt ist, deren Ende mit einer Ablängscheibe (41) versehen ist und deren anderes Ende mit einer angetriebenen Rolle (50) versehen ist, wobei ein Riemen (60) in den Rillen der ersten und zweiten Rolle (30 und 50) verläuft, so dass der Motor (20) die Scheibe (41) antreiben kann,
    dadurch gekennzeichnet, dass
    sie einen Riemenspanner (70) umfasst, der von einer Rolle (71) am Ende eines Schwenkarmes (72) gebildet ist, der dazu vorgesehen ist, einen Druck auf den spannungslosen Teil (63) des Riemens (60) auszuüben, wobei der Arm (72) auf dem Gestell (10) mit Hilfe einer Schraube (80) befestigt ist, deren Achse der Schwenkachse des Arms (72) entspricht, wobei die Schraube (80) eine derartige Steigung aufweist, dass die Reaktion des Riemens (60) auf die Rolle (71) dazu neigt, den Arm (72) auf dem Gestell (10) festzuklemmen.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, dass sich die Rolle (71) in der Nähe der ersten antreibenden Rolle (30) befindet.
  3. Maschine nach Anspruch 2, dadurch gekennzeichnet, dass sich die Schwenkachse des Arms (72) in der Nähe der zweiten angetriebenen Rolle (50) befindet, und dass die Schraube (80) eine Linkssteigung aufweist.
  4. Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Ende des Arms (72), das auf dem Gestell (10) befestigt ist, eine Querstrebe (73) mit einem polygonalen Querschnitt mit einer auf den Arm (72) senkrechten Achse umfasst, wobei die Querstrebe (73) gegen das Gestell (10) mit Hilfe der Schraube (80) geklemmt wird.
  5. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass die Einheit, die von den Rollen (30 und 50), dem Riemen (60) und dem Riemenspanner (70) gebildet ist, in einem Gehäuse (90) untergebracht ist, das mit einem Schlitz (91) im rechten Winkel zu der Querstrebe (73) für den Durchgang eines in der Querstrebe (73) im Eingriff stehenden Schlüssels versehen ist.
EP00460025A 1999-04-12 2000-04-03 Bodenschneidvorrichtung Expired - Lifetime EP1045072B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9904759A FR2792013B1 (fr) 1999-04-12 1999-04-12 Machine a scier les sols
FR9904759 1999-04-12

Publications (2)

Publication Number Publication Date
EP1045072A1 EP1045072A1 (de) 2000-10-18
EP1045072B1 true EP1045072B1 (de) 2004-06-09

Family

ID=9544463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00460025A Expired - Lifetime EP1045072B1 (de) 1999-04-12 2000-04-03 Bodenschneidvorrichtung

Country Status (5)

Country Link
EP (1) EP1045072B1 (de)
AT (1) ATE268838T1 (de)
DE (1) DE60011335T2 (de)
ES (1) ES2218095T3 (de)
FR (1) FR2792013B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPT20040011U1 (it) * 2004-10-08 2005-01-08 Imer Internat Spa Macchina da taglio a disco
DE102012000130B4 (de) * 2012-01-06 2014-09-04 Cedima Diamantwerkzeug- Und Maschinenbaugesellschaft Mbh Bodentrenn-Schleifmaschine
CN106065560B (zh) * 2016-06-27 2018-02-23 济南弗格森道路养护技术有限公司 一种多功能公路路面开槽机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT248815B (de) * 1963-05-27 1966-08-25 Fahr Ag Maschf Vorrichtung zum stufenlosen Einstellen der Spannrolle an Riemen-, Seil- oder Kettentrieben
DE3022317C2 (de) * 1980-06-13 1985-09-12 Siegfried Gölz KG, 5384 Hellenthal-Blumenthal Fahrbare Vorrichtung zum Auftrennen von Bodenbelägen
DE4017630C2 (de) * 1990-05-31 1995-06-01 Fraunhofer Ges Forschung Einrichtung zum Spannen eines Endlos-Transmissionselements
US5765926A (en) * 1996-05-03 1998-06-16 Knapp; Roger O. Apparatus for routering a surface and a cutting head and tool piece therefor

Also Published As

Publication number Publication date
DE60011335D1 (de) 2004-07-15
ES2218095T3 (es) 2004-11-16
EP1045072A1 (de) 2000-10-18
FR2792013A1 (fr) 2000-10-13
FR2792013B1 (fr) 2001-07-06
ATE268838T1 (de) 2004-06-15
DE60011335T2 (de) 2005-06-30

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